Electrical Plug Connector With Integrated Cable Fixing Housing

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Solution Overview

Problem

Existing electrical connectors face issues with mechanical stress leading to connection failure and require additional space for cable fixation, making them cumbersome and space-consuming.

Innovation Solution

An electrical connector design with a combined insulating connector housing that includes latching contact openings and a cable fixation system using two interacting fixing elements, allowing for secure cable attachment without additional tools or space, utilizing a guide for linear movement and slots with webs for clamping cables.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If cables are fixed using a separate cable gland, then mechanical fixation is achieved, but the connector becomes space-consuming and assembly becomes complex

Engineering Contradiction:
Improvemechanical fixationVSAvoidassembly complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent integrates the cable fixation function directly into the connector housing by forming a cable opening and cable reinforcement structure as integral parts of the housing. This merging of functions eliminates the need for separate cable glands, reducing the number of components and simplifying assembly while maintaining reliable mechanical fixation of the cable

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The connector housing is designed to perform multiple functions simultaneously: it provides structural support, electrical insulation, contact element mounting, and cable fixation. The cable opening and reinforcement structure are formed directly from the housing material, making the housing a multi-functional component that eliminates the need for dedicated cable fixation devices

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If additional cable fixation is added, then cable security is improved, but the connector requires additional space

Engineering Contradiction:
Improvecable securityVSAvoidconnector space
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

The cable fixation structure is merged with the connector housing itself. The cable opening and reinforcement structure are formed directly from the housing material through processes like injection molding, eliminating the need for separate fixation components that would occupy additional space. The housing serves dual purposes as both structural element and cable fixation device

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The cable reinforcement structure is nested within the connector housing design. The fixation features are integrated into the housing's internal structure, with the cable opening and reinforcement elements being part of the housing's overall geometry rather than external additions, thus optimizing space utilization

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentEP3329558B1Electrical plug connector
Publication Date: 2019.12.04 HARTING ELECTRIC GMBH & CO KG
  • EP3329558B1 patent drawingFigure 1~2
  • EP3329558B1 patent drawingFigure 3~4

AI summary

The invention relates to an electrical plug connector (1), comprising an insulating plug connector housing (2) and at least one electrical contact element (3) accommodated in the plug connector housing (2). The plug connector housing (2) forms a plugging side (4) and a connection side (5), wherein at least one contact opening (6) extends through the plug connector housing (2) from the plugging side (4) to the connection side (5). An electrical contact element (3) is accommodated in the contact opening (6) and is fastened and retained in the contact opening (6). An additional cable fastening means for fastening a connected cable is formed on the connection side (5) of the electrical plug connector (1).